266M20

Power Transformers Overview

The Hammond Manufacturing 266M20 is a chassis-mount industrial power transformer with a 60 VA rating. It features dual primary windings for 115 VAC and 230 VAC input, supporting 50 Hz/60 Hz operation. The secondary provides a 20 VAC center-tapped output at 3 A, or 10 VAC at 6 A. Designed for low voltage and filament applications, it utilizes wire leads for termination. Physical dimensions are 102.36 mm in length, 63.5 mm in width, and 66.8 mm in height, with an operating temperature range of 0 C to +130 C.

Power Transformers Feature Summary

• Dual primary winding configuration enables compatibility with both 115 VAC and 230 VAC supply voltages.
• Center-tapped secondary design supports flexible low voltage and filament circuit integration.
• Chassis mounting style facilitates secure installation within industrial control enclosures.

Power Transformers Applications

• Industrial control systems requiring isolated low voltage power
• Filament heating circuits for vacuum tubes or lamps
• General purpose AC power transformation in equipment racks

Power Transformers Procurement Notes

Verify the specific part number against official Hammond Manufacturing documentation to ensure correct voltage and current ratings. Confirm that the chassis mount dimensions and wire lead terminations match your enclosure design requirements. Check for RoHS compliance status if required by your manufacturing standards. Ensure the operating temperature range meets your environmental conditions.

Power Transformers Selection Notes

Select this model when a 60 VA capacity is required for chassis-mounted installations. The dual primary winding allows flexibility for different regional input voltages without changing hardware. Consider the physical size constraints as the unit measures over 100 mm in length. Verify that the wire lead termination method is suitable for your wiring infrastructure compared to PCB mount alternatives.

Power Transformers Part Context

This component belongs to the Hammond 266 series of industrial control transformers. The series offers various power ratings from 6 VA to higher capacities, all sharing similar chassis-mount construction and dual primary winding features. The 266M20 specifically addresses mid-range power needs with its 60 VA rating, fitting between lower power variants like the 266F20 and higher power options in the same family.

Power Transformers Replacement Considerations

Direct substitutes include other Hammond 266 series models with identical electrical specifications but different suffixes if available. Cross-reference with Hammond's official replacement guide for equivalent performance transformers. Ensure any alternative maintains the same chassis mount footprint and wire lead configuration for direct interchangeability.